<template>
  <div class="xtx-cart-page">
    <div class="container">
      <XtxBread>
        <XtxBreadItem to="/">首页</XtxBreadItem>
        <XtxBreadItem>购物车</XtxBreadItem>
      </XtxBread>
      <div class="cart">
        <table>
          <thead>
            <tr>
              <!--不能用v-model,因为vuex组件里的数据，不允许直接修改，所以用modelValue-->
              <th width="120">
                <XtxCheckbox
                  @change="checkAll"
                  :modelValue="$store.getters['cart/isCheckAll']"
                  >全选</XtxCheckbox
                >
              </th>
              <th width="400">商品信息</th>
              <th width="220">单价</th>
              <th width="180">数量</th>
              <th width="180">小计</th>
              <th width="140">操作</th>
            </tr>
          </thead>
          <!-- 有效商品 -->
          <tbody>
            <tr v-if="$store.getters['cart/validList'].length === 0">
              <td colspan="6">
                <CartNone />
              </td>
            </tr>
            <tr
              v-for="goods in $store.getters['cart/validList']"
              :key="goods.skuId"
            >
              <!--单选框-->
              <!-- 这个复选框实现单选的功能 -->
              <!-- ()=>checkOne()这是个方法-->
              <!--使用箭头函数的方式,这整个是一个js表达式,实现传递多个参数(既能拿到默认参数,又能传参) -->
              <td>
                <XtxCheckbox
                  @change="($event) => checkOne(goods.skuId, $event)"
                  :modelValue="goods.selected"
                />
              </td>
              <td>
                <div class="goods">
                  <RouterLink :to="`/product/${goods.id}`">
                    <img :src="goods.picture" alt="" />
                  </RouterLink>
                  <div>
                    <p class="name ellipsis">{{ goods.name }}</p>
                    <!-- 选择规格组件 -->
                    <!-- <p class="attr">{{ goods.attrsText }}</p> -->
                    <CartSku @change="$event=>updateCartSku(goods.skuId,$event)" :skuId="goods.skuId" :attrsText="goods.attrsText"/>
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{ goods.nowPrice }}</p>
                <p v-if="goods.price - goodsnowPrice > 0">
                  比加入时降价
                  <span class="red"
                    >&yen;{{ goods.price - goods.nowPrice }}</span
                  >
                </p>
              </td>
              <td class="tc">
                <XtxNumbox @change="$event=>changeCount(goods.skuId,$event)" :max="goods.stock" :modelValue="goods.count" />
              </td>
              <!--Math.round() 处理小数点问题-->
              <td class="tc">
                <p class="f16 red">
                  &yen;{{
                    (Math.round(goods.nowPrice * 100) * goods.count) / 100
                  }}
                </p>
              </td>
              <td class="tc">
                <p><a href="javascript:;">移入收藏夹</a></p>
                <p>
                  <a
                    @click="deleteCart(goods.skuId)"
                    class="green"
                    href="javascript:;"
                    >删除</a
                  >
                </p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
          <!-- 无效商品 -->
          <tbody v-if="$store.getters['cart/invalidList'].length > 0">
            <tr>
              <td colspan="6"><h3 class="tit">失效商品</h3></td>
            </tr>
            <tr
              v-for="goods in $store.getters['cart/invalidList']"
              :key="goods.skuId"
            >
              <td><XtxCheckbox style="color: #eee" /></td>
              <td>
                <div class="goods">
                  <RouterLink :to="`/product/${goods.id}`">
                    <img :src="goods.picture" alt="" />
                  </RouterLink>
                  <div>
                    <p class="name ellipsis">{{ goods.name }}</p>
                    <p class="attr">{{ goods.attrsText }}</p>
                  </div>
                </div>
              </td>
              <td class="tc">
                <p>&yen;{{ goods.nowPrice }}</p>
              </td>
              <td class="tc">{{ goods.count }}</td>
              <td class="tc">
                <p>
                  &yen;{{
                    (Math.round(goods.nowPrice * 100) * goods.count) / 100
                  }}
                </p>
              </td>
              <td class="tc">
                <p>
                  <a
                    @click="deleteCart(goods.skuId)"
                    class="green"
                    href="javascript:;"
                    >删除</a
                  >
                </p>
                <p><a href="javascript:;">找相似</a></p>
              </td>
            </tr>
          </tbody>
        </table>
      </div>
      <!-- 操作栏 -->
      <div class="action">
        <div class="batch">
          <XtxCheckbox
            @change="checkAll"
            :modelValue="$store.getters['cart/isCheckAll']"
            >全选</XtxCheckbox
          >
          <a @click="batchDeleteCart()" href="javascript:;">删除商品</a>
          <a href="javascript:;">移入收藏夹</a>
          <a @click="batchDeleteCart(true)" href="javascript:;">清空失效商品</a>
        </div>
        <div class="total">
          共 {{ $store.getters["cart/validTotal"] }} 件商品，已选择
          {{ $store.getters["cart/selectedTotal"] }} 件，商品合计：
          <span class="red">¥{{ $store.getters["cart/selectedAmount"] }}</span>
          <XtxButton @click="checkout()" type="primary">下单结算</XtxButton>
        </div>
      </div>
      <!-- 猜你喜欢 -->
      <GoodRelevant />
    </div>
  </div>
</template>
<script>
import GoodRelevant from "@/views/goods/components/goods-relevant";
import CartNone from "@/views/cart/components/cart-none.vue";
import CartSku from "@/views/cart/components/cart-sku.vue";

 
import { useStore } from "vuex";
import Message from '@/components/library/Message'
import Confirm from "@/components/library/confirm";
import { useRouter } from 'vue-router';

export default {
  name: "XtxCartPage",
  components: { GoodRelevant, CartNone, CartSku },
  setup() {
    const store = useStore();

    // 单选
    const checkOne = (skuId, selected) => {
      console.log(skuId, selected);
      store.dispatch("cart/updateCart", { skuId, selected });
    };

    // 全选
    const checkAll = (selected) => {
      store.dispatch("cart/checkAllCart", selected);
    };

    // 删除
    const deleteCart = (skuId) => {
      // store.dispatch('cart/deleteCart', skuId).then(()=>{
      //   Message({type:'success',text:'删除成功'})
      // })

      Confirm({ text: "亲，您是否确认删除该商品" })
        .then(() => {
          store.dispatch("cart/deleteCart", skuId).then(() => {
            Message({ type: "success", text: "删除成功" });
          });
          // console.log('确认')
        })
        .catch((e) => {
          console.log("取消");
        });
    };

    // 批量删除选中商品，也支持清空无效商品
    // 区分:有传参的是清空无效商品
    // 如果要做批量删除的列表无数据，阻止提示下没有你要删除的商品。
      // 清空失效商品：目前传人[]数据，会清空说有的商品包括有效商品（后台BUG）
    const batchDeleteCart = (isClear) => {
      Confirm({ text: `您确定从购物车删除${isClear ? '失效' : '选中'}的商品吗？` }).then(() => {
        store.dispatch('cart/batchDeleteCart')
      }).catch(e => {})
    }

    // 修改数量
    const changeCount = (skuId, count) => {
      store.dispatch('cart/updateCart', { skuId, count })
    }

    // 修改规格
    const updateCartSku = (oldSkuId, newSku) => {
      store.dispatch('cart/updateCartSku', { oldSkuId, newSku })
    }

    // 结算
    const router = useRouter()
    const checkout = ()=>{
      // 1. 判断是否选中有效商品，且提示
      // 2. 判断是否已经登录，未登录 弹窗提示：下单结算需要登录
      // 3. 进行跳转 （需要做访问权限控制）
      //    使用导航守卫,遇见需要登录的路由跳转，拦截到登录页面  
      if (store.getters['cart/selectedTotal'] === 0) return Message({ text: '至少选中一件商品才能结算' })
      // if (!store.state.user.profile.token) {
        Confirm({ text: '下单结算需要登录，您是否去登录？' }).then(() => {
          // .then点击确认.catch 点击取消
          router.push('/member/checkout')
        }).catch(e => {
          // router.push('/member/checkout')
        })
      // } else {
      //    router.push('/member/checkout')
      // }
    }

    return { checkOne, checkAll, deleteCart, batchDeleteCart, changeCount, updateCartSku,checkout  }

  },
};
</script>
<style scoped lang="less">
.tc {
  text-align: center;
  .xtx-numbox {
    margin: 0 auto;
    width: 120px;
  }
}
.red {
  color: @priceColor;
}
.green {
  color: @xtxColor;
}
.f16 {
  font-size: 16px;
}
.goods {
  display: flex;
  align-items: center;
  img {
    width: 100px;
    height: 100px;
  }
  > div {
    width: 280px;
    font-size: 16px;
    padding-left: 10px;
    .attr {
      font-size: 14px;
      color: #999;
    }
  }
}
.action {
  display: flex;
  background: #fff;
  margin-top: 20px;
  height: 80px;
  align-items: center;
  font-size: 16px;
  justify-content: space-between;
  padding: 0 30px;
  .xtx-checkbox {
    color: #999;
  }
  .batch {
    a {
      margin-left: 20px;
    }
  }
  .red {
    font-size: 18px;
    margin-right: 20px;
    font-weight: bold;
  }
}
.tit {
  color: #666;
  font-size: 16px;
  font-weight: normal;
  line-height: 50px;
}
.xtx-cart-page {
  .cart {
    background: #fff;
    color: #666;
    table {
      border-spacing: 0;
      border-collapse: collapse;
      line-height: 24px;
      th,
      td {
        padding: 10px;
        border-bottom: 1px solid #f5f5f5;
        &:first-child {
          text-align: left;
          padding-left: 30px;
          color: #999;
        }
      }
      th {
        font-size: 16px;
        font-weight: normal;
        line-height: 50px;
      }
    }
  }
}
</style>